Effect of biotin on the regulation of glucokinase in the intact rat
1992
Li Hsieh, Y.T. | Mistry, S.P.
Glucokinase activity was affected by hormones, dietary state, and dietary sources (e.g., glucose). Therefore, various factors (such as glucose, insulin, and biotin) affecting glucokinase activity in the rat liver were investigated. The activity of glucokinase was low in diabetic, fasting, and/or biotin-deficient rats. In the present study, the de novo synthesis of the glucokinase induced by the insulin and biotin in the intact rat was proposed. The first induction of glucokinase was activated by insulin. The second phase of enzyme activity could be induced by biotin. In addition, supplementation of cGMP with glucose and insulin to biotin deficient rats fully restored the enzyme activity as did biotin, showing that cGMP induction of glucokinase was dependent on the biotin status of the animal.
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